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<h1>宏录制</h1>
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<span id="qa">qa</span>                  <span>开始录制名字为 a 的宏</span>
<span id="q">q</span>                   <span>结束录制宏</span>
<span id="@a">@a</span>                  <span>播放名字为 a 的宏</span>
<span id="@@">@@</span>                  <span>播放上一个宏</span>
<span id="@:">@:</span>                  <span>重复上一个ex命令（即冒号命令）</span>
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